Raccoon River Park Weather Forecast

    • 73
    • 95

    Partly Sunny

    • 72
    • 94

    Mostly Sunny

    • 70
    • 89

    Chance Thunderstorms

    • 73
    • 89

    Slight Chance Thunderstorms

    • 75
    • 95

    Chance Thunderstorms

    • 70
    • 91

    Slight Chance Thunderstorms

Today 4 Sep Polk

Sunny, hot with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 105 this afternoon.

Tonight 4 Sep Polk

Mostly clear. Humid with Lows in the lower 70s. South Winds around 5 Mph. Heat index Values up to 104 early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Raccoon River Park Temperature Statistics

September Temperature

Des Moines International Airport (3.7 miles)

  • Lowest 1 September, 2026

    75 °F

  • Average September

    84.9 °F

  • Highest 1 September, 2026

    96.1 °F

Climate (2021–2026)

Des Moines International Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.5 °F
Get WillyWeather+ to remove ads